Constructor Model: September 1, 2026

Overview

In this release, we've added the following features:

• Improved Knowledge Model prompt configuration
• Collaboration access management for Knowledge Models

We also fixed issues affecting AI Tutor answers, Knowledge Model previews and summaries, widget behavior, feedback analytics, file indexing, guide links, and collaborator access stability.

What's new

Improved Knowledge Model prompt configuration

Knowledge Model Owners can now manage the model system prompt as a single full prompt instead of separate prompt blocks.

This makes prompt configuration clearer and helps ensure the same prompt is applied consistently across Knowledge Model chat engines. Default prompts continue to be used unless a custom prompt is saved.

Tracking IDs: ROL-15892

Collaboration access management for Knowledge Models

Knowledge Model Owners can now manage collaborator access from the Knowledge Model settings. Owners can invite same-tenant users with edit access and revoke existing access from the collaboration interface.

This release also includes fixes that help shared Knowledge Models open more reliably for collaborators and keep collaborator sessions stable during owner uploads and publishing.

Tracking IDs: ROL-14346, ROL-16704, ROL-16752, ROL-16763

Fixed issues

We made the following fixes and improvements:

• AI Tutor answers now use available course context more reliably instead of returning unsupported answers or saying that information is unavailable. Tracking IDs: ROL-16200
• PDF previews and PowerPoint summaries in Knowledge Models now work more reliably. Tracking IDs: ROL-16777, ROL-16436
• Knowledge Models now answer questions about numeric information in uploaded graphs more reliably. Tracking IDs: ROL-16435
• File indexing behavior has been improved so files are not shown as ready before their content can be used in answers. Tracking IDs: ROL-16456, ROL-16173
• Feedback analytics now include sessions for Career Adviser knowledge models. Tracking IDs: ROL-16004
• Knowledge Model widget cover images, widget status text, and widget customization layout have been corrected. Tracking IDs: ROL-15992, ROL-16181, ROL-16177
• The Add LLM menu now opens correctly. Tracking IDs: ROL-16467
• User guide links from Model pages now open the correct documentation. Tracking IDs: ROL-16147
• Deleted Knowledge Models are removed from the list more reliably after deletion. Tracking IDs: ROL-16107